229121380 has 24 divisors (see below), whose sum is σ = 506479680. Its totient is φ = 86824800.

The previous prime is 229121371. The next prime is 229121383. The reversal of 229121380 is 83121922.

It is not an unprimeable number, because it can be changed into a prime (229121383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301096 + ... + 301855.

It is an arithmetic number, because the mean of its divisors is an integer number (21103320).

Almost surely, 2^229121380 is an apocalyptic number.

229121380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229121380 is an abundant number, since it is smaller than the sum of its proper divisors (277358300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

229121380 is a wasteful number, since it uses less digits than its factorization.

229121380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602979 (or 602977 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 229121380 is about 15136.7559272124. The cubic root of 229121380 is about 611.9113923292.

The spelling of 229121380 in words is "two hundred twenty-nine million, one hundred twenty-one thousand, three hundred eighty".